I.D. This engine.

The only info I could fid on the engine itself is "Twin II, Cast Iron Bore, 18"
Its an opposed twin, and I dont need a giant sticker to tell me that. I need a new starter and cant find a model #, I remode the blower housing and didnt find jack.....if it helps its black.

Is it the original motor that came with the tractor? If so try looking up the actual tractor and seeing what you can find.

It should be on the blower housing

got pics?

No idea if its oringinal, I just bought the damned thing and the guy I got it from had to start it directly from the starter, and he got the idea of turning the old rusty bolt for the positive terminal and Funny over the insides. and its not on the housing..

My opposed twin was the same way, 18HP and I just got a 16HP opposed with the same starter if you want I could give you the model number.

ive got a 20 opposed and found out theirs 2 different starters for them a long case 4. somthing inches and one thats 3.75 or something the longer ones are made for the higher hp motors ive fount them both on ebay heres a link the long one less then 40 shipped new [url=http://www.ebay.com/itm/NEW-STARTER-BRIGGS-399928-495100-498148-14-16-18-HP-/360457205390]http://www.ebay.com/itm/NEW-STARTER-BRIGGS-399928-495100-498148-14-16-18-HP-/360457205390[/url]

They've used 3 starter lengths or types all in all. You can tell which one from the length as you say and what the end cap is made of.

Current style starters are 3 5/8 housing with molded plastic end cap.
Also current style starters 4 1/2 housing also with molded plastic end cap,
They can also be stamped steel or aluminum brush end cap.
Then you have the Early style starter which is 3" housing with Die Cast end cap.

422707 is my 18hp twin's model number. But the type will be impossible to know without the original plate. They're all similar enough. Just search 422707.

It's a briggs and stratton. I/C and Twin II are all B&S trademarks. The 18hp engine is a 42 cubic inch / 688cc design, and so will have a 42 as the first two digits of the model number. This is all your small engine shop should need. It's a 12v unit [obviously], and it's a 18h Twin II model 42. There are not a billion starter types for this engine. 422707 is a standard model number for these. Your small engine shop should be able to order a starter for it without the type and code numbers. The Twin II series started after type number 1100.